Cushion-tire for vehicle-wheels.



H. M; LAMBERT. CUSHION TIRE FOP. VEHICLE-WHEELS.

APPLICATION FILED SEPT. 11. I916.

Patented May 28, 1918. 5

iticncwn elm a citizen li crtlerrrl in MAL ll: 2 mg meec L HUD.mrnpsmymg drew-- is cxcmgpli and 111mm. legs, in Whic n Figure 1SllQ'lVr'l circumferemtl-zrl cecitien of epcrticm meme m.

lfigfl shewe r r a tire lluscretmg the ml blcclre rer fil're cue lion"ire Fig, 3 chews "e crcse eecficlcrc; tire, taken cm the line c? cilel'cil cf the silevi Fig. e elm?" pm View cf e. pcrllcn cf pcme cf thebelle with fillers, cpplied 'cllererc' obliquely.

"' ring mere in il llere ll 1U carry: W E c cl e111 ez'i l :mcl arrangedcreifer elrernere er staggered rcletlcn, ehewm m A 2 and cemented 0rzed. I.

cf vehicle tire emlccdying; my

mere clmnncl llzerewitlr, j desired the series 011? blocks may bevulcmnzecl together "mgentml S'lClGfl or a. cenru'mcns' 11pm A erlinert-earl. ntially :nmur:

cf ccncen orbs 1 uc'lzerl ehewn in 41-,

tealizpon the rea which consists Bally errerlgerl is J), which arepref-- a? bel" curl inelastic.

' ell; ll construct with a base '10 cf canvas, or other ml, which,during the 1c belt, WI and upon this stretched or 1 TA: Wecncl, underesuimble (le- "ensiein, crz-e layer 2r cord; 15; the lzl c ifcundetienlayer being; suitably u vulcenizetion. Upon bhe first .W the cerrl ,ielelrl anctller, winding yer cf fabric, this being-vulecnizecl to the:cret, and $0 on until as many cencen'cric lmzcinm of fabric strips midcoils of card are so arranged as to produce an endless belt 13 of thedesired thickness;

The endless, norrstretclmble, but flexible and substantmllyncncafiepresmble, belts ere shown spaced 1nthe tlre' by transverselyamending, obliquely arranged; circmnfel cm ll spaced we or blocks 16,cicum able Widlll'l and. thickness, the length of which substantiallycquel to the Width of the belts 13; the fillers. 01 blocks 16 beingspacer]; pitched. about equal I prefer tc use the blccczs or spacers 16of the tire 0r sucl: character that filmy are sulcircumfercinlzielly andlihelr Width m be s11lostzrmllsilly rubber at opposite 1s stretched tolts llmll. ,j

lly ncmcc-mprcssible encl men-clavicle lml; rumble, and preferably are el?) which we" be hrc'u 'lrt rlcwn ever the mules l errrenderl 10.fcrmfianges 18, thue benll" the spacer belts anal intermediate fillersmm a compcsite tire structure. The la-ages 18 are preferecly Vulcanizedto .the rubber e'upperting blcclrc 152, and the inner bclt l5 elf thetire may :rlec be vulcanized "w 22ml 5Y0 abhe PHZQOEQL cl neuficr securlngthe tire and blocks in position upon the wheel. A suitable breakerstrip 19 may be employed in connection with the rubber tread. 1

In my tire I v employ preferably three bands, the cords i of which aretested to determine their tensile strength and then laid under maximumtension so as to completely in danger of their becoming loose and flabbyremove further stretching. no -.fur ther give in the finished belts andis entirely eliminated. The fillers between the belts are made flexibleinorder that they may adjust themselves to inequalities in the surfaceof the roadway and are non-compressible' to avoid flattening of the tireand resultant loss of power. By arranging these I fillers obliquely onthe belts I am enabled to derive greater tensile strength from the tirethan would be possible if the fillers were at right angles to the belts.

' This tire, in respect to its operation, when meeting both small andlarge obstacles simulates the action of a pneumatic tire. The firstphase of this operation, which is obtained in pneumaticftires by theinstantaneous yielding of the tire at the point of impact, I accomplishby reason of the fact that the belts and fillers will flex to a certaindegree to accommodate slight obstructions, such as small stones andlumps, in the roadway and instantly spring back to place under thevibratory influence of the tensional cords in the belts. Thesecondphasev of the operation, namely, that in connection with meeting largeobstacles which is obtained in pneumatic tires through the compressionof the air in the tire around the entire Wheel, I accomplish by theprovision of the yielding supports 12 between the tire and the wheelrim. .Thus a large obstruc- 'tion will cause'inward bending of the tireat the point of contact and all of the rubber supporting blocks arecaused to be compressed at once. owing to-the non-stretchable characterof the belts, and thus the rim of the wheel .is reinforced at all pointsThere is then than otherwise.

Many changes in the construction and ar rangement of the several partsof my device may be employed without departing from the spirit of myinvention as disclosed in the appended clain'is.

Having thus described my invention what I claim and desire to secure byLetters Patent is- 1. The combination with a wheel having a rigid rim,ofa cushion tire therefor comprising a flexible, but in itselfsubstantially non-compressible, superstructure formed in part ofcircumferential fabric belts stretched to their approximate limit ofelongation and a yielding support-between the superstructure and thewheel rim comprising a fabric base secured to the. wheel rim and rubbercushioning devices vulcanized to said base and to the superstructure.

2. The combination with a Wheel having a rigid rim, of a cushion tireconsisting of a superstructure embodying a plurality of concentricallyspaced, non-stretchable, flexible endless belts, separated bycircumferentially and symmetrically spaced, non-compressible, flexiblefillers, a circumferential fabric base to fit the wheel rim and spacedapart from the inner belt of the superstructure, and rubber cushioningdevices between the base and inner belt, the whole being integrallybonded.

The combination with a wheel having a rigid rim, of a.cushion tireconsisting of a superstructure embodying a plurality of concentricallyspaced, non-stretchable, flexible, endless belts, separated bycircumferentially and symmetrically spaced, non-compressible, flexiblefillers, a circumferential fabric base to fit the wheel rim and spacedapart from the inner belt of the superstructure, and rubber cushioningdevices between the base and inner belt, the wholebeing integrallybonded, the circumferential edges of the inner belt of saidsuperstructure being turned to engage the sides of the cushioningdevices.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

' HENRY M. LAMBERT. Witnesses:

D. G. WOODWARD, B W. Cooper.

